Sri Sivalingam

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PURPOSE Ureteral stent discomfort is a significant postoperative problem for many patients. Despite the use of narcotics and α-blockers patients often experience bothersome lower urinary tract symptoms and pain, which impair daily activities. We compared combination therapy with an α-blocker and an anticholinergic to monotherapy with an α-blocker. (More)
PURPOSE In this prospective trial we compared ultralow dose computerized tomography reconstruction algorithms and routine low dose computerized tomography for detecting urolithiasis. MATERIALS AND METHODS A total of 48 consenting adults prospectively underwent routine low dose noncontrast computerized tomography immediately followed by an ultralow dose(More)
BACKGROUND AND PURPOSE We previously reported hyperoxaluria and calcium oxalate calculi in adult pigs (sows) fed hydroxyproline (HP). The purpose of this study was to grossly and histopathologically characterize intrarenal effects in this model. METHODS In the swine facility at our campus, we maintained 21 gestating sows, of which 15 received daily(More)
Renal angiomyolipomas (AMLs) are benign renal masses that are often asymptomatic and detected incidentally. However, treatment might be necessary in symptomatic presentations or when the mass exceeds 4 cm in size. While the goal of management for renal AMLs is to relieve symptoms and prevent hemorrhage, a priority is renal function preservation, especially(More)
INTRODUCTION Radical cystoprostatectomy remains the gold standard treatment for muscle invasive bladder cancer. However, given the treatment related complications of compromised potency and continence with this procedure, prostate/sexuality sparing cystectomy in orthotopic neobladder candidates has emerged in an effort to minimize these quality of life(More)
OBJECTIVE To characterize current practices of percutaneous nephrolithotomy (PCNL) among endourologists in relation to practice setting, experience, and fellowship training. METHODS An Internet survey was administered to active Endourological Society members. Responses were grouped based on demographic information pertaining to setting of practice, number(More)
Visualization of short echo time (TE) metabolites in prostate magnetic resonance spectroscopic imaging is difficult due to lipid contamination and pulse timing constraints. In this work, we present a modified pulse sequence to permit short echo time (TE=40ms) acquisitions with reduced lipid contamination for the detection of short TE metabolites. The(More)
The medical radiation usage for diagnostic radiology in Malaysia (a Level II country) for 1990-1994 is reported, enabling a comparison to be made for the first time with the United Nations Scientific Committee on the Effects of Atomic Radiation Report. In 1994, the number of physicians, radiologists, x-ray units, and x-ray examinations per 1,000 population(More)
PURPOSE We retrospectively assessed outcomes in a single institution series of percutaneous nephrolithotomy using retrograde nephrostomy access. MATERIALS AND METHODS We retrospectively evaluated the records of 333 consecutive patients treated between May 2003 and July 2008. Measured variables included patient demographics, retrograde nephrostomy site,(More)